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Whether it's for summertime or swimming lessons, your girls need the right gear for when they dive into the water. Check out thredUP's selection of girls' swimwear to discover items from top brands at up to 90% off estimated retail.

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47 items
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    Ruffle Butts One Piece Swimsuit (view 2)Ruffle Butts One Piece Swimsuit (view 1)
    View Product: Ruffle Butts One Piece Swimsuit

    Ruffle Butts

    One Piece Swimsuit
    Size 18-24 mo
    $9.99 $11
    Roxy One Piece Swimsuit (view 2)Roxy One Piece Swimsuit (view 1)
    View Product: Roxy One Piece Swimsuit

    Roxy

    One Piece Swimsuit
    Size 7
    $19.99
    51% off estimated retail
    Tuga Wetsuit (view 2)Tuga Wetsuit (view 1)
    View Product: Tuga Wetsuit

    Tuga

    Wetsuit
    Size 7
    $29.99
    64% off estimated retail
    Assorted Brands Two Piece Swimsuit (view 2)Assorted Brands Two Piece Swimsuit (view 1)
    View Product: Assorted Brands Two Piece Swimsuit

    Assorted Brands

    Two Piece Swimsuit
    Size 14
    $14.99
    54% off estimated retail
    The Edit. Forever Classic, Get perfectly polished in trousers, blazers, and more. Shop The Edit
    Hanna Andersson Rash Guard (view 2)Hanna Andersson Rash Guard (view 1)
    View Product: Hanna Andersson Rash Guard

    Hanna Andersson

    Rash Guard
    Size 110 cm
    $32.99
    34% off estimated retail
    Athleta Rash Guard (view 2)Athleta Rash Guard (view 1)
    View Product: Athleta Rash Guard

    Athleta

    Rash Guard
    Size 14
    $24.99 $14.99 40% off with code HOTDEAL
    57% off estimated retail
    Yandy Basics Two Piece Swimsuit (view 2)Yandy Basics Two Piece Swimsuit (view 1)
    View Product: Yandy Basics Two Piece Swimsuit

    Yandy Basics

    Two Piece Swimsuit
    Size 12 mo
    $10.99 $8.79 20% off with code HOTDEAL
    $11
    Primary Clothing Wetsuit (view 2)Primary Clothing Wetsuit (view 1)
    View Product: Primary Clothing Wetsuit

    Primary Clothing

    Wetsuit
    Size 12-18 mo
    $16.99 $13.59 20% off with code HOTDEAL
    74% off estimated retail
    Unbranded Rash Guard (view 2)Unbranded Rash Guard (view 1)
    View Product: Unbranded Rash Guard

    Unbranded

    Rash Guard
    Size Medium youth
    $10.99 $8.79 20% off with code HOTDEAL
    69% off estimated retail
    Garnet Hill One Piece Swimsuit (view 2)Garnet Hill One Piece Swimsuit (view 1)
    View Product: Garnet Hill One Piece Swimsuit

    Garnet Hill

    One Piece Swimsuit
    Size 12
    $18.99 $13.29 30% off with code HOTDEAL
    48% off estimated retail
    Cabana Life Two Piece Swimsuit (view 2)Cabana Life Two Piece Swimsuit (view 1)
    View Product: Cabana Life Two Piece Swimsuit

    Cabana Life

    Two Piece Swimsuit
    Size 6X
    $30.99 $20.14 35% off with code HOTDEAL
    58% off estimated retail
    Tea One Piece Swimsuit (view 2)Tea One Piece Swimsuit (view 1)New With Tags
    View Product: Tea One Piece Swimsuit

    Tea

    One Piece Swimsuit
    Size 3-6 mo
    $18.99
    60% off estimated retail
    Tea One Piece Swimsuit (view 2)Tea One Piece Swimsuit (view 1)
    View Product: Tea One Piece Swimsuit

    Tea

    One Piece Swimsuit
    Size 3
    $21.99 $13.19 40% off with code HOTDEAL
    62% off estimated retail
    Angel Beach Swimsuit Cover Up (view 2)Angel Beach Swimsuit Cover Up (view 1)
    View Product: Angel Beach Swimsuit Cover Up

    Angel Beach

    Swimsuit Cover Up
    Size 10
    $12.99 $10.39 20% off with code HOTDEAL
    25% off estimated retail
    Janie and Jack Rash Guard (view 2)Janie and Jack Rash Guard (view 1)
    View Product: Janie and Jack Rash Guard

    Janie and Jack

    Rash Guard
    Size 3 mo
    $11.99 $9.59 20% off with code HOTDEAL
    67% off estimated retail
    Peixoto Two Piece Swimsuit (view 2)Peixoto Two Piece Swimsuit (view 1)
    View Product: Peixoto Two Piece Swimsuit

    Peixoto

    Two Piece Swimsuit
    Size 2
    $25.99 $20.79 20% off with code HOTDEAL
    61% off estimated retail
    Peixoto Two Piece Swimsuit (view 2)Peixoto Two Piece Swimsuit (view 1)
    View Product: Peixoto Two Piece Swimsuit

    Peixoto

    Two Piece Swimsuit
    Size 2
    $23.99 $19.19 20% off with code HOTDEAL
    61% off estimated retail
    Weissman Designs for Dance One Piece Swimsuit (view 2)Weissman Designs for Dance One Piece Swimsuit (view 1)
    View Product: Weissman Designs for Dance One Piece Swimsuit

    Weissman Designs for Dance

    One Piece Swimsuit
    Size X-Large kids
    $15.99 $11.99 25% off with code HOTDEAL
    48% off estimated retail
    Unbranded Two Piece Swimsuit (view 2)Unbranded Two Piece Swimsuit (view 1)
    View Product: Unbranded Two Piece Swimsuit

    Unbranded

    Two Piece Swimsuit
    Size X-Small kids
    $14.99 $11.99 20% off with code HOTDEAL
    48% off estimated retail
    Baby Gap One Piece Swimsuit (view 2)Baby Gap One Piece Swimsuit (view 1)
    View Product: Baby Gap One Piece Swimsuit

    Baby Gap

    One Piece Swimsuit
    Size 12-18 mo
    $12.99 $10.39 20% off with code HOTDEAL
    59% off estimated retail
    Lands' End Rash Guard (view 2)Lands' End Rash Guard (view 1)
    View Product: Lands' End Rash Guard

    Lands' End

    Rash Guard
    Size 14
    $31.99 $20.79 35% off with code HOTDEAL
    70% off estimated retail
    Lands' End Swimsuit Cover Up (view 2)Lands' End Swimsuit Cover Up (view 1)
    View Product: Lands' End Swimsuit Cover Up

    Lands' End

    Swimsuit Cover Up
    Size 6
    $34.99 $17.50 50% off with code HOTDEAL
    18% off estimated retail
    Shade Critters Two Piece Swimsuit (view 2)Shade Critters Two Piece Swimsuit (view 1)Price Drop
    View Product: Shade Critters Two Piece Swimsuit

    Shade Critters

    Two Piece Swimsuit
    Size 6-12 mo
    $20.99 $15.74 25% off with code HOTDEAL
    61% off estimated retail
    Speedo Rash Guard (view 2)Speedo Rash Guard (view 1)
    View Product: Speedo Rash Guard

    Speedo

    Rash Guard
    Size X-Large kids
    $9.99 $7.99 20% off with code HOTDEAL
    64% off estimated retail
    FBZ Two Piece Swimsuit (view 2)FBZ Two Piece Swimsuit (view 1)Price Drop
    View Product: FBZ Two Piece Swimsuit

    FBZ

    Two Piece Swimsuit
    Size Large tots
    $25.99 $15.59 40% off with code HOTDEAL
    61% off estimated retail
    Garnet Hill Rash Guard (view 2)Garnet Hill Rash Guard (view 1)Price Drop
    View Product: Garnet Hill Rash Guard

    Garnet Hill

    Rash Guard
    Size 6
    $20.99 $12.59 40% off with code HOTDEAL
    45% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)Price Drop
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 2X-large kids
    $16.99 $11.04 35% off with code HOTDEAL
    51% off estimated retail
    Unbranded One Piece Swimsuit (view 2)Unbranded One Piece Swimsuit (view 1)New With Tags
    View Product: Unbranded One Piece Swimsuit

    Unbranded

    One Piece Swimsuit
    Size 100 cm
    $13.99 $8.39 40% off with code HOTDEAL
    55% off estimated retail
    xcel Rash Guard (view 2)xcel Rash Guard (view 1)Price Drop
    View Product: xcel Rash Guard

    xcel

    Rash Guard
    Size 12
    $24.99 $13.74 45% off with code HOTDEAL
    59% off estimated retail
    Vivo Biniya Rash Guard (view 2)Vivo Biniya Rash Guard (view 1)Price Drop
    View Product: Vivo Biniya Rash Guard

    Vivo Biniya

    Rash Guard
    Size 4
    $15.99 $9.59 40% off with code HOTDEAL
    51% off estimated retail
    Eberjey Swimsuit Cover Up (view 2)Eberjey Swimsuit Cover Up (view 1)Price Drop
    View Product: Eberjey Swimsuit Cover Up

    Eberjey

    Swimsuit Cover Up
    Size Medium youth
    $24.99 $10.00 60% off with code HOTDEAL
    69% off estimated retail
    Adidas Rash Guard (view 2)Adidas Rash Guard (view 1)Price Drop
    View Product: Adidas Rash Guard

    Adidas

    Rash Guard
    Size 8
    $14.99 $8.99 40% off with code HOTDEAL
    70% off estimated retail
    KANU girl Rash Guard (view 2)KANU girl Rash Guard (view 1)Price Drop
    View Product: KANU girl Rash Guard

    KANU girl

    Rash Guard
    Size X-Small kids
    $10.99 $6.59 40% off with code HOTDEAL
    63% off estimated retail
    ZeroXposur Swimsuit Cover Up (view 2)ZeroXposur Swimsuit Cover Up (view 1)Price Drop
    View Product: ZeroXposur Swimsuit Cover Up

    ZeroXposur

    Swimsuit Cover Up
    Size 16
    $14.99 $8.99 40% off with code HOTDEAL
    73% off estimated retail
    Little Me Rash Guard (view 2)Little Me Rash Guard (view 1)Price Drop
    View Product: Little Me Rash Guard

    Little Me

    Rash Guard
    Size 6-9 mo
    $7.99 $4.79 40% off with code HOTDEAL
    56% off estimated retail
    Sofibella Rash Guard (view 2)Sofibella Rash Guard (view 1)Price Drop
    View Product: Sofibella Rash Guard

    Sofibella

    Rash Guard
    Size Small youth
    $18.99 $11.39 40% off with code HOTDEAL
    83% off estimated retail
    Marina West Rash Guard (view 2)Marina West Rash Guard (view 1)Price Drop
    View Product: Marina West Rash Guard

    Marina West

    Rash Guard
    Size 4
    $11.99 $7.19 40% off with code HOTDEAL
    50% off estimated retail
    Janie and Jack Rash Guard (view 2)Janie and Jack Rash Guard (view 1)Price Drop
    View Product: Janie and Jack Rash Guard

    Janie and Jack

    Rash Guard
    Size 6-12 mo
    $11.99 $7.19 40% off with code HOTDEAL
    67% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)Price Drop
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 10
    $12.24 $6.73 45% off with code HOTDEAL
    69% off estimated retail
    Assorted Brands Rash Guard (view 2)Assorted Brands Rash Guard (view 1)Price Drop
    View Product: Assorted Brands Rash Guard

    Assorted Brands

    Rash Guard
    Size 10
    $12.24 $6.73 45% off with code HOTDEAL
    69% off estimated retail
    Hanna Andersson Rash Guard (view 2)Hanna Andersson Rash Guard (view 1)Price Drop
    View Product: Hanna Andersson Rash Guard

    Hanna Andersson

    Rash Guard
    Size 160 cm
    $16.24 $8.93 45% off with code HOTDEAL
    78% off estimated retail
    OshKosh B'gosh One Piece Swimsuit (view 2)OshKosh B'gosh One Piece Swimsuit (view 1)Price Drop
    View Product: OshKosh B'gosh One Piece Swimsuit

    OshKosh B'gosh

    One Piece Swimsuit
    Size 24 mo
    $13.24 $7.94 40% off with code HOTDEAL
    62% off estimated retail
    Janie and Jack Rash Guard (view 2)Janie and Jack Rash Guard (view 1)Price Drop
    View Product: Janie and Jack Rash Guard

    Janie and Jack

    Rash Guard
    Size 3-6 mo
    $13.24 $7.94 40% off with code HOTDEAL
    74% off estimated retail
    Skechers Rash Guard (view 2)Skechers Rash Guard (view 1)Price Drop
    View Product: Skechers Rash Guard

    Skechers

    Rash Guard
    Size 12
    $15.24 $9.14 40% off with code HOTDEAL
    78% off estimated retail
    OshKosh B'gosh One Piece Swimsuit (view 2)OshKosh B'gosh One Piece Swimsuit (view 1)Price Drop
    View Product: OshKosh B'gosh One Piece Swimsuit

    OshKosh B'gosh

    One Piece Swimsuit
    Size 3 mo
    $11.24 $6.74 40% off with code HOTDEAL
    62% off estimated retail
    OshKosh B'gosh One Piece Swimsuit (view 2)OshKosh B'gosh One Piece Swimsuit (view 1)Price Drop
    View Product: OshKosh B'gosh One Piece Swimsuit

    OshKosh B'gosh

    One Piece Swimsuit
    Size 6 mo
    $12.24 $7.34 40% off with code HOTDEAL
    62% off estimated retail
    Plaid Fish One Piece Swimsuit (view 2)Plaid Fish One Piece Swimsuit (view 1)Price Drop
    View Product: Plaid Fish One Piece Swimsuit

    Plaid Fish

    One Piece Swimsuit
    Size 18 mo
    $9.24 $5.54 40% off with code HOTDEAL
    20% off estimated retail
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